Features1Delivery: The controller kit includes 22A JN controller; S900 display panel, accelerator dial; Boost sensor wiring; Boost sensor booster pad, controller package, power off brake handle, which are suitable for DIY modification and meet all needs. 2Grooved Shell: The controller shell is made of metal with groove design. Due to its good heat dissipation function, it can protect the internal circuit to avoid thermal overload. 3ABS Panel: The display panel is made of ABS material, which is light, durable, fine and has good toughness and waterproof performance, providing better protection for the internal circuit and making it more durable. 4Multiple Functions: S900 panel has multiple functions; When riding a bike, the product will display many useful data on your bike, such as switch buttons, light switches, battery power display and other functions. A display screen can let you keep track of the situation. 5500W Motor Applicable: 22A JN controller small kit is applicable to 500W motor; Main applications: DIY electric bicycle, electric scooter, folding car, etc; It is easy to maintain. The lithium battery modification of bicycles greatly improves the fun of riding, and is suitable for cyclists who like challenges.SpecificationItem Type: Electric Bicycle Conversion KitMaterial: ABS, rubber, aluminum alloy, metalGross Weight: 1133g/40.0ozApplicable: Applicable to 500W motorController Size: 12x5.5x3cm/4.7x2.2x1.2inController Current: 22AController Speed Setting: 1.1-4.2VSupercharger: 1:5Applicable Motor Power: 500WBraking: Input low levelPackage List1 x Controller1 x Controller Bag1 x Controller Instruction1 x S900 Panel1 xPanelInstruction2 x Power Off Brake Handle1 x Thumb Accelerator1 x Power Assisted Magnetic Disc1 x PowerAssisted Line